Example usage for com.amazonaws.auth AWSCredentialsProviderChain setReuseLastProvider

Introduction

In this page you can find the example usage for com.amazonaws.auth AWSCredentialsProviderChain setReuseLastProvider.

Prototype

public void setReuseLastProvider(boolean b) 

Source Link

Document

Enables or disables caching of the last successful credentials provider in this chain.

Usage

From source file:com.thinkbiganalytics.kylo.catalog.aws.S3FileSystemProvider.java

License:Apache License

/**
 * Creates an S3 client with the standard credential providers.
 *///from   w w  w  .  j  a va2 s .  co m
@VisibleForTesting
protected AmazonS3 createS3Client(@Nonnull final URI uri, @Nonnull final Configuration conf) {
    // Create list of credential providers
    final List<AWSCredentialsProvider> credentials = new ArrayList<>();
    getCustomCredentialsProvider(uri, conf).ifPresent(credentials::add);
    getBasicCredentialsProvider(uri, conf).ifPresent(credentials::add);
    credentials.add(InstanceProfileCredentialsProvider.getInstance());

    // Create client
    final AWSCredentialsProviderChain chain = new AWSCredentialsProviderChain(credentials);
    chain.setReuseLastProvider(true);
    return AmazonS3ClientBuilder.standard().withCredentials(chain).build();
}

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From source file:org.apache.hadoop.dynamodb.DynamoDBClient.java

License:Open Source License

protected AWSCredentialsProvider getAWSCredentialsProvider(Configuration conf) {
    List<AWSCredentialsProvider> providersList = new ArrayList<>();

    // try to load custom credential provider, fail if a provider is specified but cannot be
    // initialized
    String providerClass = conf.get(DynamoDBConstants.CUSTOM_CREDENTIALS_PROVIDER_CONF);
    if (!Strings.isNullOrEmpty(providerClass)) {
        try {//from   w w  w. j  a v  a2s .  c  o m
            providersList.add(
                    (AWSCredentialsProvider) ReflectionUtils.newInstance(Class.forName(providerClass), conf));
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("Custom AWSCredentialsProvider not found: " + providerClass, e);
        }
    }

    // try to fetch credentials from core-site
    String accessKey = conf.get(DYNAMODB_CREDENTIAL_PAIR_NAME.getAccessKeyName());
    String secretKey;
    if (Strings.isNullOrEmpty(accessKey)) {
        accessKey = conf.get(DEFAULT_CREDENTIAL_PAIR_NAME.getAccessKeyName());
        secretKey = conf.get(DEFAULT_CREDENTIAL_PAIR_NAME.getSecretKeyName());
    } else {
        secretKey = conf.get(DYNAMODB_CREDENTIAL_PAIR_NAME.getSecretKeyName());
    }

    if (Strings.isNullOrEmpty(accessKey) || Strings.isNullOrEmpty(secretKey)) {
        providersList.add(new InstanceProfileCredentialsProvider());
    } else {
        final AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
        providersList.add(new AWSCredentialsProvider() {
            @Override
            public AWSCredentials getCredentials() {
                return credentials;
            }

            @Override
            public void refresh() {
            }
        });
    }

    AWSCredentialsProvider[] providerArray = providersList
            .toArray(new AWSCredentialsProvider[providersList.size()]);

    AWSCredentialsProviderChain providerChain = new AWSCredentialsProviderChain(providerArray);
    providerChain.setReuseLastProvider(true);
    return providerChain;
}

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From source file:org.springframework.cloud.aws.core.credentials.CredentialsProviderFactoryBean.java

License:Apache License

@Override
protected AWSCredentialsProvider createInstance() throws Exception {
    AWSCredentialsProviderChain awsCredentialsProviderChain;
    if (this.delegates.isEmpty()) {
        awsCredentialsProviderChain = new DefaultAWSCredentialsProviderChain();
    } else {//from w  w w .ja  va2s  .  c om
        awsCredentialsProviderChain = new AWSCredentialsProviderChain(
                this.delegates.toArray(new AWSCredentialsProvider[this.delegates.size()]));
    }

    awsCredentialsProviderChain.setReuseLastProvider(false);
    return awsCredentialsProviderChain;
}

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